What Kind Of Change Occurs When Salt Dissolves In Water (2023)

Biology Middle School

Answers

Answer 1

Answer: physical change

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Example: Dissolution of salt in water

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: Oxidation of magnesium to give magnesium oxide

Thus physical change occurs when salt dissolves in water.

Answer 2

It becomes salt water

Related Questions

which statement correctly identifies the scientific question and describes why the question is scientific​

Answers

Answer:

what are the statements?

Explanation:

Which are characteristics of natural selection?

Answers

Answer:

reproduction, heredity, variation in characteristics, and variation in fitness

Explanation: these are the characteristics of natural selection

Which three structures are found in both prokaryotic and eukaryotic cells?

Answers

Answer: Cytoplasm, cell membrane, ribosomes.

Explanation:

Eukaryotic cells contain a nucleus within a membrane and other membrane-bound organelles, such as mitochondria and chloroplasts. While, prokaryotic cells don't. Thereby, the only structures found in both cells are:

  • Cytoplasm: semifluid substance within a cell, where organelles are found.
  • Cell membrane: a membrane that separates the interior of all cells from the outside, and which regulates the transport of substances.
  • Ribosomes: Organelle that serves as the site of protein synthesis

But, both type of cells contain genetic material but in prokaryotic cells it is naked and found freely in the cytoplasm (within a region called the nucleoid) . And in eukaryotic cells it is found inside the nucleus, bonded to proteins called histones.

A plasma membrane, ribosomes, cytoplasm, and DNA. Hope this helped. Please make sure to make me brainliest answer ✨

What are the products of cellular respiration? O
A. Glucose and ATP
O
B. Oxygen, carbon dioxide, and water
OC. NADPH and oxygen
O
D. Energy, carbon dioxide, and water​

Answers

Answer:

energy, carbon dioxide, and water

Answer:

D. Energy, carbon dioxide, and water​

Explanation:

APEX

What happens during anaerobic cellular respiration

Answers

Inanaerobic respiration, glucose breaks down without oxygen. The chemical reaction transfers energy from glucose to the cell.Anaerobic respirationproduces lactic acid, rather than carbon dioxide and water.

Hope this helped, please make to make me brianliest answer ❤️

Answer:

Lactic acid fermentation may occur. Cells covert pyruvic acid into lactic acid. NADH is converted to NAD+. No additional ATP is produced after glycolysis. Alcohol fermentation may occur.Cells convert pyruvic acid to carbon dioxide and alcohol.

What is a plant root an example of

Answers

Answer:

Someone else answered it, but a plant root is a example of a a plant that typically lies below the surface of the soil.

Explanation:

What is the maximum magnification of a compound light microscope?
ANSWER: 2,500x

Answers

The maximum magnification of a compound light microscope is 2500x

What do proteins, nucleic, acids, and carbohydrates all have in common

Answers

Answer:

Proteins, nucleic acids, and carbohydrates are macromolecules present in living organisms.

These molecules are composed of carbon atoms bonded together. These carbon atoms also bind to other elements such as hydrogen, oxygen, nitrogen and phosphorus. Each type of molecule has its own composition of different proportions.

Answer:

oxygen is common in them

Explanation:

ozygen is common in all of rhem

Give an example of an animal responding to change in its surroundings

Answers

Answer:

Plants consuming less water / adapting to heat and drought.

Explanation:

As we can already see, mostly in Europe, climate change (rise in temperatures) has had a drastic impact on the (mostly in summer) climate.*

Now, to the point. I am really sure that by the end of this summer, many plants will die, but some might also realise that less water is avaliable, and that temperatures are higher. This will cause a noticable change to a plants metablism and endurance (heat-wise), and we will surely be able to see it in probably 2-3 summers time.

*Keep in mind that the current heat affecting Europe is not only caused by global warming, it has been also affected by a heat-wave coming form northern Africa.

Hope it helped,

BiologiaMagister

Andrea wants to understand the impact of the fragmentation of habitats on wildlife species. Which method will help Andrea with her study? A assisted reproduction
B. camera trapping
C. genome conservation
D. ecosystem modeling

Answers

Answer:

D. Ecosystem modeling.

Explanation:

Andrea wants to know the impact that habitat fragmentation has on wildlife. If we think about it, she is studying an ecosystem: habitat + wildlife. Therefore, it is easy to conclude what the answer is. Plus, when we study damage on habitats that bring negative effects to wildlife, we're directly studying the damage of an ecosystem.

Ecosystem modeling is the creation of an ecosystem model, to understand an study what happens in the real ecosystem.

Hope it helped,

BiologiaMagister

C. Genome Conservation

Drinking milk with dinner can help you stay hydrated.
true or false

Answers

true, because milk is a mixture of different nutrients like minerals, protein, fats, vitamins, salt etc in the water.

Answer:

trueee

Explanation:

Which of these is an example of infill? O
A. Putting a parking garage on an unused lot inside a city
O
B. Converting rural pastureland into a new shopping center
O
C. Converting an old shopping mall into a community college
O
D. Drawing an urban growth boundary around an area

Answers

ANSWER:

The correct option is A: Putting a "parking garage" on an unused lot inside a city.

EXPLANATION:

  • Infill takes place when a land or area not being used is put to use for public good. This does not mean that an area which is old is converted to a new area or is brought to use.
  • The infill of an unused area by putting a parking garage simply brings the area under use. However, if the area or land was under cultivation or had an old building on it and was converted to a parking lot, it would not have been infill.

Answer:

Putting a parking garage on an unused lot inside a city- A.

Plants absorb nitrogen from: the atmosphere the soil water

Answers

ANSWER:

Plants absorb nitrogen from the soil.

EXPLANATION:

  • Nitrogen is absorbed by the roots of the plants in the form of amino acids, nitrate or nitrite ions.
  • The nitrogen absorbed from the soil by roots is then transported to the various parts of the plants. Plants do not get nitrogen they need directly from the air.
  • This is because the organic nitrogen that is available in the atmosphere is not usable for plants. Plants need non-organic nitrogen which is obtained by changing organic nitrogen into non-organic forms by the bacteria in the soil.

Answer:

Plants absorb nitrogen from: the soil ( second choice)

Down syndrome, the most common genetic condition in the United States, is also called trisomy 21. What does this mean?

Answers

Answer:

Explanation:

It means that chromosome 21 has a third partial or complete copy of chromosome 21. The symptom severities vary somewhat.

Answer:

There are three set of chromosome 21

Explanation:

Trisomy signifies presence of abnormal three chromosomes instead of two.

Down syndrome is also known as trisomy 21 because there are three chromomose -21 rather than two.

There are 46 chromosome in a normal human being which constitutes 23 pairs of chromosome. However, a person suffering from down syndrome has 47 chromosome with an extra chromosome -21.

Which features do all new rocks formed near an oceanic ridge share? Check all that apply. -pillow-shaped
-striped pattern
-provide evidence to seafloor spreading
-made from molten material
-iron oriented in same direction

Answers

Answer:

Options (1), (2), (3) and (4)

Explanation:

Mid oceanic ridge is the region along the spreading of the sea floor occurs. Along this ridge, the magma come out to the surface, and lava forms pillow shaped rocks such as pillow basalt. Basalt is the dominant rock type in the oceanic crust.

There occurs striped patterns that are oriented parallel mid oceanic ridge, and this strips depicts the magnetic field of the earth, and it keeps on changing on each eruption of this magma beneath the ocean long this ridge.

The mid oceanic ridge suggests the spreading of the sea floor and the rocks present at this ridge are younger than the rocks that are away from the ridge.

This rocks are comprised of the molten iron material that are present in the mantle and suggest the magnetic field of the earth during the time of eruptions.

Hence, the correct answers are options (1), (2), (3) and (4).

Answer: 1,2,3, and 4!

Explanation:

How is sericulture done

Answers

Answer:

1. The silk moth lays eggs

2.The eggs hatch, and the larvae feed on mulberry leaves.

3.When the silkworms are 10,000 times heavier than when they hatched, they are ready to spin silk in a cocoon.

4.The silk is produced in two glands in the silkworms head and forced out in liquid form through openings called spinnerets.

Explanation:

What does it mean that a hypothesis must be falsifiable in order to be valid ​

Answers

Answer:

It means that a hypothesis could only be considered true or false, not from its verifiability, but from its falsifiability

Explanation:

The scientific observation is always oriented previously by a hypothesis to be proven, that is, the science that is based on the inductive method selects the phenomena that will be investigated for the proof of something that is already supposed. For this reason, the verifiability criterion will not always be valid.

Hypotheses that offer no possibility of being refuted through experience should be considered as myths, not as science. To say that a scientific hypothesis must be falsifiable empirically means to say that a scientific theory must offer the possibility of refutation - and, if refuted, should not be considered.

Answer:

It means that a hypothesis must be able to be rejected by the experiment proposed.

Explanation:

In science, a hypothesis can either be supported or refuted after conducting an experiment. No hypothesis will be valid unless there is a possiblility for it to be refuted by the experiment.

Describe why biodiversity increased with the introduction of sea otters in California over the last fifty years

Answers

Answer:

Due to increment in food chains.

Explanation:

Biodiversity is actually the measure of changes in the ecosystem, genetic levels and various species levels. The sea otters introduced in California over last fifty years, increased the diversity in the ecosystem as well as in species too, thus changing the biodiversity. This was the impact of increase in food web in that particular area, the number of consumers, producers and prey increased thus increasing the biodiversity.

Which of the following best helps scientists determine the order in which a species evolved? (2 points) Type of fossil

Geographic location of the fossil

Location of the fossil in Earth's layers

Species of the fossil

Answers

Answer:B

Explanation:

As longitudinal wave travel particles in the medium are pushed together and then pulled apart. we call this

Answers

Answer:

compression and rarefaction

Explanation:

This kind of wave is called a longitudinal wave and an example of such a wave is a sound wave. The center of compression can be analogous to the top of a crest of a transverse wave while the center of the rarefaction would be analogous to the bottom of the trough of a transverse wave.

Answer:

compression

Explanation:

The part of a longitudinal wave where the particles are more closely pushed together is called a compression.

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